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We have begun an exciting era for gravitational wave detection, as several world-leading experiments are breaching the threshold of anticipated signal strengths. Pulsar timing arrays (PTAs) are pan-Galactic gravitational wave detectors that…

Instrumentation and Methods for Astrophysics · Physics 2015-11-26 Sarah Burke-Spolaor

An extremely sensitive all-sky survey will be carried out in the millimetre/submillimetre waveband by the forthcoming ESA mission Planck Surveyor. The main scientific goal of the mission is to make very accurate measurements of the spatial…

Astrophysics · Physics 2009-10-30 Andrew W. Blain

Pulsars have proven instrumental in exploring a wide variety of physics. Pulsars at low radio frequencies is crucial to further our understanding of spectral properties and emission mechanisms.The Murchison Widefield Array Voltage Capture…

High Energy Astrophysical Phenomena · Physics 2023-01-11 S. Sett , N. D. R. Bhat , M. Sokolowski , E. Lenc

Pulsar timing is a technique that uses the highly stable spin periods of neutron stars to investigate a wide range of topics in physics and astrophysics. Pulsar timing arrays (PTAs) use sets of extremely well-timed pulsars as a Galaxy-scale…

Instrumentation and Methods for Astrophysics · Physics 2021-10-05 J. P. W. Verbiest , S. Oslowski , S. Burke-Spolaor

The main goal of pulsar timing array experiments is to detect correlated signals such as nanohertz-frequency gravitational waves. Pulsar timing data collected in dense monitoring campaigns can also be used to study the stars themselves,…

Over the past two decades, I have been actively involved in teaching astronomy and astrophysics to Chicago Public School (CPS) students and their teachers, in collaboration with various groups as well as by myself. Valuable resources that…

Physics Education · Physics 2021-08-19 Vikram V. Dwarkadas

Searches for millisecond pulsars (which we here loosely define as those with periods $<$ 20 ms) in the Galactic field have undergone a renaissance in the past five years. New or recently refurbished radio telescopes utilizing cooled…

Astrophysics of Galaxies · Physics 2015-06-16 K. Stovall , D. R. Lorimer , R. S Lynch

The Green Bank North Celestial Cap (GBNCC) survey is a 350-MHz all-sky survey for pulsars and fast radio transients using the Robert C. Byrd Green Bank Telescope. To date, the survey has discovered over 190 pulsars, including 33 millisecond…

The number of known millisecond pulsars has dramatically increased in the last few years. Regular observations of these pulsars may allow gravitational waves with frequencies ~10^-9 Hz to be detected. A ``pulsar timing array'' is therefore…

Astrophysics · Physics 2009-11-10 George Hobbs

Pulsar timing uses the highly stable pulsar spin period to investigate many astrophysical topics. In particular, pulsar timing arrays make use of a set of extremely well-timed pulsars and their time correlations as a challenging detector of…

Astrophysics of Galaxies · Physics 2021-12-16 Michele Maiorano , Francesco De Paolis , Achille A. Nucita

The wealth of high-energy (E > 50 MeV) and very-high-energy (E > 100 GeV) data accumulated over the past few years have provided unprecedented opportunities to probe pulsar emission models. The Fermi Large Area Telescope (LAT) has now…

High Energy Astrophysical Phenomena · Physics 2017-02-03 Christo Venter

Since 2017 the Italian Space Agency (ASI) participates to so-called "Alternanza Scuola-Lavoro" (i.e., "school-work synergy") outreach projects promoted by the Italian government, and the ASI Space Science Data Center (SSDC) actively…

Physics Education · Physics 2020-12-08 Angelo Zinzi , Carlotta Pittori , Rosa Tagliamonte , Elisa Nichelli

Pulsars, the cosmic lighthouses, are strongly self-gravitating objects with core densities significantly exceeding nuclear density. Since the discovery of the Hulse--Taylor pulsar 50 years ago, binary pulsar studies have delivered numerous…

High Energy Astrophysical Phenomena · Physics 2025-07-15 Huanchen Hu

The Photonics Explorer program aims to equip science teachers at Europe's secondary schools free-of-charge with up-to-date educational material to really engage, excite and educate students about the fascination of working with light.

Physics Education · Physics 2012-05-07 Robert Fischer

We present 15 years of Nan\c{c}ay and Green Bank radio telescope timing observations for PSR J1231$-$1411. This millisecond pulsar is a primary science target for the Neutron Star Interior Composition Explorer telescope (NICER, which…

High Energy Astrophysical Phenomena · Physics 2026-03-02 H. Thankful Cromartie , Matthew Kerr , Scott M. Ransom , Paul S. Ray , Lucas Guillemot , Ismaël Cognard , Emmanuel Fonseca , Gilles Theureau

The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported strong statistical evidence for a common-spectrum red-noise process for all pulsars, as seen in their 12.5-yr analysis for an isotropic…

General Relativity and Quantum Cosmology · Physics 2021-03-24 Joseph D. Romano , Jeffrey S. Hazboun , Xavier Siemens , Anne M. Archibald

First observations for the Parkes Pulsar Timing Array project were carried out in February 2004. The project is ongoing and we currently observe approximately every three weeks. The data have led to numerous scientific results on topics as…

Instrumentation and Methods for Astrophysics · Physics 2012-10-04 G. Hobbs

Citizen science offers an opportunity for ordinary people, known as citizen scientists or citizen astronomers in the context of astronomy, to contribute to scientific research. The Pan-African Citizen Science e-Lab (PACS e-Lab) was founded…

Instrumentation and Methods for Astrophysics · Physics 2024-08-22 Miracle Chibuzor Marcel , Kassamba Abdel Aziz Diaby , Meryem Guennoun , Betty Rose Nabifo , Mohamed Elattar , Andoniaina Rajaonarivelo , Privatus Pius , Molly Nkamogelang Kgobathe , Immanuel Luis , Sigrid Shilunga , Nejmeddine Etteyeb , Keketso Qhomane , Samuel Nyangi , Tresford Chilufya Kalunga , Nunes Alfredo Assano , Edson Domingos Jequecene , Mafuka Lusala Joseph , Esaenwi Sudum , Jorbedom Leelabari Gerald , Christopher Tombe Louis Gore , Kareem Waleed Hosny , Nagat Yasser , Jocelyn Franck , Mamoudou Kourouma , Baboucarr Bobb , Kebab Jaiteh , Salma Sylla , Hans Essone Obame , Dennis Kiyeng , Thobekile Sandra Ngwanw , Tawanda Kelvin Simon , Saja Alhoush Sulayman , Salma Regaibi , Souley Yahaya , Tengwi Mogou Ornela , Henry Sanderson Viyuyi , Fortune Tatenda Matambo , Matthias Asare-Darko , Christian Kontoa Koussouwa Gbaba , Moisés da Silva , Ntahompagaze Joseph , Gilberto Gomes , Bongiwe Portia Mkhabela , Bauleni Bvumbwe , Tshombe Nkhowani , Mawugnon Axel Gahou , Sarah Abotsi-Masters , René Simbizi , Salomon Mugisha , Ahmed Saeed , Mohammed Yahya Alradi Eldaw , Allen Thomas , Ben Abdallah ridha , Dieumerci kaseha , Sherine Ahmed El Baradei , Nahla Hazem Hussein , Bado Fabrice , Ngozika Frances Anekwe , Arvind Ramessur , Mohamed Ali Koroma , Harold Safary , Oosthuizen Leonardo , Mdumiseni Wisdom Dabulizwe Dlamini , Mamadou Mahamat Djabbi , Nonofo Angela , Mamaja Jalloh , Mamadou Balde , Joy Olayiwola , Elijah Ibharalu , Thierry Martial Tchangole , Kirubel Memberu , Lidia Dinsa , Chidozie Gospel Ezeakunne

We present the pulsar_spectra software repository, an open-source pulsar flux density catalogue and automated spectral fitting software that finds the best spectral model and produces publication-quality plots. The Python-based software…

High Energy Astrophysical Phenomena · Physics 2022-11-09 N. A. Swainston , C. P. Lee , S. J. McSweeney , N. D. R. Bhat

NASA's Parker Solar Probe (PSP) mission is currently investigating the local plasma environment of the inner-heliosphere ($< $0.25$R_\odot$) using both {\em{in-situ}} and remote sensing instrumentation. Connecting signatures of…